There are about 3576 clinical studies being (or have been) conducted in South Africa. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
The purpose of this study is to provide gefitinib treatment to patients who, on completion or closure of other gefitinib clinical studies, were either receiving placebo treatment, or are continuing on the same dose and regimen of gefitinib established in their preceding study, for as long as the patients continue to derive benefit.
To provide early access to tipranavir and evaluate the safety and tolerance of tipranavir combined with low dose of ritonavir in patients with progressive, HIV-1 disease who have failed or are intolerant to currently approved treatments for HIV infection, who are unable to participate in another tipranavir controlled clinical trial and have an urgent need for anti-HIV treatment.